(function() {"use strict";var __module = CC_EDITOR ? module : {exports:{}};var __filename = 'preview-scripts/assets/Script/basic/Maybe.js';var __require = CC_EDITOR ? function (request) {return cc.require(request, require);} : function (request) {return cc.require(request, __filename);};function __define (exports, require, module) {"use strict";
cc._RF.push(module, '87152sP62JPBLq9qVeN+QK6', 'Maybe', __filename);
// Script/basic/Maybe.ts

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
Object.defineProperty(exports, "__esModule", { value: true });
var Maybe = /** @class */ (function () {
    function Maybe(v) {
        if (v === void 0) { v = null; }
        this._isValid = null;
        this._value = null;
        if (v != null) {
            this._isValid = true;
            this._value = v;
        }
        else {
            this._isValid = false;
        }
    }
    Maybe.Just = function (v) {
        return new Maybe(v);
    };
    Maybe.Nothing = function () {
        return new Maybe();
    };
    Object.defineProperty(Maybe.prototype, "val", {
        get: function () {
            return this._value;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(Maybe.prototype, "valid", {
        get: function () {
            return this._isValid;
        },
        enumerable: true,
        configurable: true
    });
    // Functor f => (a -> b) -> f a -> f b
    Maybe.prototype.map = function (func) {
        if (this.valid) {
            return new Maybe(func(this.val));
        }
        else {
            return new Maybe();
        }
    };
    Maybe.prototype.asyncFmap = function (func) {
        return __awaiter(this, void 0, void 0, function () {
            var u;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!this.valid) return [3 /*break*/, 2];
                        return [4 /*yield*/, func(this.val)];
                    case 1:
                        u = _a.sent();
                        return [2 /*return*/, new Maybe(u)];
                    case 2: return [2 /*return*/, new Maybe()];
                }
            });
        });
    };
    Maybe.prototype.pure = function (x) {
        return new Maybe(x);
    };
    // Monad m => (a -> m b) -> m a -> m b
    Maybe.prototype.bind = function (func) {
        if (this.valid) {
            return func(this.val);
        }
        else {
            return new Maybe();
        }
    };
    Maybe.prototype.getOrElse = function (x) {
        return this.valid ? this.val : x;
    };
    Maybe.prototype.lift2 = function (func, ou) {
        if (this.valid && ou.valid) {
            return new Maybe(func(this.val, ou.val));
        }
        else {
            return new Maybe();
        }
    };
    return Maybe;
}());
exports.Maybe = Maybe;

cc._RF.pop();
        }
        if (CC_EDITOR) {
            __define(__module.exports, __require, __module);
        }
        else {
            cc.registerModuleFunc(__filename, function () {
                __define(__module.exports, __require, __module);
            });
        }
        })();
        //# sourceMappingURL=Maybe.js.map
        